3. Endocrine system Components endocrine glands: thyroid gland,parathyroid endocrine glands: thyroid gland,parathyroid gland,adrenal gland,pituitary gland,adrenal gland,pituitary gland,pineal body,etc. gland,pineal body,etc. Scattered endocrine cells: islet cells of Scattered endocrine cells: islet cells of pancreas,etc. pancreas,etc. Function: secreting hormones which regulate the functions of the body and maintenance of functions of the body and maintenance of a steady internal environment state. a steady internal environment state.

7. Synthesis of thyroid hormone I+ absorbed from blood by follicular cells Glycoprotein synthesized by follicular cells Thyroid hormones ( T3 and T4) Monoiodotyrosyls or diiodotyrosyls Taken back into the follicular cells to further modification Iodinated thyroglobulin (colloid in the follicles)

9. Myxedema and hyperthyroidism

10. cretins

13. C cells

16. parathyroid gland

20. zona glomerulosa

22. zona fasciculasa

24. zona reticularis

28. Subdivision of the pituitary Neurohypophysis pars posterior (pars nervosa) pars posterior (pars nervosa) infundibulum infundibulumAdenohypophysis pars anterior (pars distalis) pars anterior (pars distalis) pars tuberalis pars tuberalis pars intermedia pars intermedia

31. Pars anterior

35. Pars intermedia Pars intermedia

39. Pars posterior

40. hypophysis